27768384072 has 96 divisors (see below), whose sum is σ = 88353982080. Its totient is φ = 7767377280.

The previous prime is 27768384029. The next prime is 27768384221. The reversal of 27768384072 is 27048386772.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1338208 + ... + 1358799.

It is an arithmetic number, because the mean of its divisors is an integer number (920353980).

Almost surely, 2^27768384072 is an apocalyptic number.

27768384072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27768384072 is an abundant number, since it is smaller than the sum of its proper divisors (60585598008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27768384072 is a wasteful number, since it uses less digits than its factorization.

27768384072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697043 (or 2697036 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 54.

The spelling of 27768384072 in words is "twenty-seven billion, seven hundred sixty-eight million, three hundred eighty-four thousand, seventy-two".